Do not round your answer If necessary consult a list of form

Do not round your answer.

(If necessary, consult a list of formulas.)

A spinner has equally sized sections, of which are yellow and of which are green. The spinner is spun and, at the same time, a fair coin is tossed. What is the probability that the spinner lands on green and the coin toss is tails? Do not round your answer. (If necessary, consult a list of formulas.)

Solution

probability that the spinner lands on green = 18/20

probability that the spinner lands on green=9/10

probability that coin toss is tails =1/2

probability that the spinner lands on green and the coin toss is tails = probability that the spinner lands on green * probability that the coin toss is tails

probability that the spinner lands on green and the coin toss is tails =(9/10)(1/2)

probability that the spinner lands on green and the coin toss is tails =9/20